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EP0941955B1 - Méthode et dispositif pour continuellement enrouler une bande de matériau - Google Patents

Méthode et dispositif pour continuellement enrouler une bande de matériau Download PDF

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Publication number
EP0941955B1
EP0941955B1 EP99102588A EP99102588A EP0941955B1 EP 0941955 B1 EP0941955 B1 EP 0941955B1 EP 99102588 A EP99102588 A EP 99102588A EP 99102588 A EP99102588 A EP 99102588A EP 0941955 B1 EP0941955 B1 EP 0941955B1
Authority
EP
European Patent Office
Prior art keywords
pressure
winding
drum
pressure drum
new
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP99102588A
Other languages
German (de)
English (en)
Other versions
EP0941955A2 (fr
EP0941955A3 (fr
Inventor
Zygmunt Madrzak
Roland Möller
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Voith Patent GmbH
Original Assignee
Voith Paper Patent GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Voith Paper Patent GmbH filed Critical Voith Paper Patent GmbH
Publication of EP0941955A2 publication Critical patent/EP0941955A2/fr
Publication of EP0941955A3 publication Critical patent/EP0941955A3/fr
Application granted granted Critical
Publication of EP0941955B1 publication Critical patent/EP0941955B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H19/00—Changing the web roll
    • B65H19/22—Changing the web roll in winding mechanisms or in connection with winding operations
    • B65H19/2238—The web roll being driven by a winding mechanism of the nip or tangential drive type
    • B65H19/2253—The web roll being driven by a winding mechanism of the nip or tangential drive type and the roll being displaced during the winding operation
    • B65H19/2261—Pope-roller
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H18/00—Winding webs
    • B65H18/08—Web-winding mechanisms
    • B65H18/26—Mechanisms for controlling contact pressure on winding-web package, e.g. for regulating the quantity of air between web layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2403/00—Power transmission; Driving means
    • B65H2403/50—Driving mechanisms
    • B65H2403/52—Translation screw-thread mechanisms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2408/00—Specific machines
    • B65H2408/20—Specific machines for handling web(s)
    • B65H2408/23—Winding machines
    • B65H2408/236—Pope-winders with first winding on an arc of circle and secondary winding along rails

Definitions

  • the invention relates to a winding roll according to the preamble of claim 1 and a winding machine for the continuous winding of a material web, in particular paper or cardboard web, on a reel to a winding roll according to the preamble of claim 9.
  • Methods and winding machines of the type mentioned here are related with a machine for the production or processing of a material web, for Example paper or cardboard web used.
  • a Winding machine proposed (DE 197 35 590.0), in which the material web over a peripheral region of a pressure drum is guided. the one with a winding roll forms a winding gap.
  • the diameter increases the winding roller by a relative movement of the winding roller relative to the Pressure drum balanced and the line force in the winding gap by a shift the pressure drum controlled.
  • To prepare a drum change a new drum in a primary area above the pressure drum brought in. There is a winding gap between the new drum and the pressure drum due to a relative movement between the pressure drum and the new drum educated.
  • the material web is separated and its free end on the new one Reel wound.
  • the new drum comes with the newly created winding roll over a circumferential area of the pressure drum into a lower-lying secondary area transferred.
  • the winding in the primary area and during the transfer becomes a compensation of the increasing winding roll diameter and the Control of the line force in the winding nip realized by moving the pressure drum.
  • the diameter increase of the winding roll again by a relative movement of the winding roll with respect to the pressure drum a guide track balanced and the line force in the winding gap through again controlled a shift of the pressure drum. It has been shown that the setting the line force during winding in the primary area is not always sensitive enough is possible, which has an adverse effect on the winding quality.
  • the procedure provides that during the current Winding process the material web guided over a peripheral region of a pressure drum through a winding gap between the pressure drum and a winding roller led and wound on this.
  • the pressure drum is pressed against the winding roll, with a control or regulation of the line force in the winding nip by moving the pressure drum he follows.
  • a desired diameter of the winding roll and The pressure drum becomes the necessary preparation for a drum change in a fixed position, in which the bearing of the pressure drum temporarily is fixed. This can e.g. in such a way that the contact with the winding roll under Maintaining the desired line force is maintained.
  • the weight of the pressure drum is both greater than that of an empty drum also that of a winding roll with only a few winding layers.
  • the one for control or regulation of the line force in the winding gap to be moved mass of the winding roll The start of the winding process is relative to the mass of the pressure drum low, so that a particularly sensitive one, especially during the winding process Setting the line force is possible. This in turn enables an optimal one Core winding and thus a defined structure of the winding roll, which results in the winding result is improved. Only after the winding roll in the secondary area has been transferred, there is a change in the tax movement for hiring the line force instead.
  • the stationary storage of the Press drum released so that they are shifted to adjust the line force can, preferably during the compensation of the increasing winding roll diameter by a relative movement of the winding roller with respect to the pressure drum is carried out because namely in the manufacture of very large winding roll diameters the usual maximum stroke distance of moving the pressure drum for one stationary storage of the winding roll is usually not sufficient.
  • a good winding result that is to say a Winding roll can be achieved with a defined, uniform winding hardness, because a Fine adjustment of the line force in the winding gap between the pressure drum and the Winding roll during the start of the winding process and when transferring the reel in the secondary area is possible.
  • a winding machine with the features of the claim 9 suggested.
  • This includes a pressure drum, which by means of a pressure device - preferably horizontally - is shiftable. Over a peripheral area the pressure drum is a material web, in particular a paper or Cardboard web, guided on a spool and wound up into a winding roll.
  • the Drum forms a winding nip with the pressure drum through which the material web to be led.
  • the winding machine also has both a two pivot lever and a holding device comprising a new drum and primary bearing to move the new drum radially along a first guideway Pressure drum, as well as a secondary storage for the drum.
  • the pressure drum is temporarily in one when the drum is in the primary storage Fixed position fixable and it is when the reel is in the secondary storage is, by means of the pressing device - preferably horizontally or substantially horizontal - relocatable.
  • the line force in the winding gap during winding in The primary area is particularly sensitive due to a shift of the drum from the beginning only a few layers of winding roll relative to the temporarily fixed Pressure drum can be set.
  • a particularly good core winding of the Tambours possible, which in turn increases the quality of the winding roll.
  • the winding force is controlled again in the secondary area corresponding to DE 197 35 590.0.
  • Figures 1 to 5 each show a highly schematic schematic diagram of an embodiment a winding machine 1, which is used for winding a generally referred to as material web 3 paper web on a reel.
  • Out 1 to 5 show a sequence of functional steps of the winding machine 1.
  • the winding machine 1 comprises what is also referred to as a carrying drum or support roller Pressure drum 5, which by means of a pressure device 6 along an imaginary - horizontal line G shown in dashed lines is displaceable (double arrow 7).
  • the pressure drum driven by a drive, preferably a center drive 5 is rotatably held on a guide carriage 8 which on a horizontal guide 9 is movable.
  • the hydraulic in this embodiment Piston / cylinder unit designed pressure device 6 includes a in a cylinder 11 guided piston 13 which engages with the guide carriage 8 Piston rod 15 is firmly connected.
  • Cylinder 11 becomes the guide carriage 8 and thus the pressure drum 5 in 1 shifted to the right in the direction of an arrow 19.
  • Cylinder 11 becomes the guide carriage 8 and thus the pressure drum 5 in 1 shifted to the right in the direction of an arrow 19.
  • moving in the piston rod 15 in the cylinder 11 is a displacement of the pressure drum 6th to the left in Figure 1.
  • the winding machine 1 further comprises a primary bearing 21, the two pivot levers 23 comprises, of which only one is shown in Figure 1.
  • the swivel levers 23 are around a stationary one that extends perpendicularly into the image plane of FIG Swiveling axis.
  • a holding device 25 is attached to the pivot levers 23, which with the aid of a primary pressure device shown only symbolically with an arrow 72 is displaceable relative to the pivot levers 23.
  • the holding device 25 is used for rotatably holding and guiding a reel.
  • the winding phase shown is an empty drum 27 from the holding device 25 in a distance from the pressure drum 5 held ("standby position").
  • the primary pressure device (arrow 72) is the one in FIGS. 1 to 5 illustrated embodiment a piston / cylinder unit, the structure - at least essentially - that of the pressing device 6.
  • you can to move the holding device 25 relative to the pivot levers 23 also Spindle drive or the like can be used.
  • On the function of the Primary bearing 21 is discussed in more detail below.
  • the winding machine 1 further comprises a secondary bearing 31, which is arranged horizontally Rails 33 and a transport device movable by means of a lifting device 35 37 includes.
  • the lifting device 35 is formed here by a spindle drive. which comprises a threaded spindle 41 driven by an electric motor 39.
  • the transport device 37 serves to hold and guide one on the rails 33 overlying drums; in the winding phase of a drum shown in Figure 1 43, on which a winding roll 45 is wound.
  • the secondary storage 31 is a a symbol indicated, hereinafter referred to as secondary drive 47 Center drive assigned to that of the secondary storage or Transport device 37 drives the drum 43.
  • the secondary drive 47 is in a known manner together with the transport device 37 parallel to the Rails 33 relocatable.
  • the drum 43 is arranged in a secondary area in FIG.
  • Secondary area is the part of the winding process in which the winding roll on the Rails 33 of the secondary bearing 31 rests and optionally along this a second linear guideway is shifted; in this embodiment along the straight line G.
  • the pressure drum 5 by means of the pressure device 6 defines the scope of the wound on the reel 43 Winding roll 45 pressed, whereby a winding gap is formed.
  • the material web 3 is passed over a peripheral region of the pressure drum 5 and onto the winding roll 45 wound.
  • the line force (arrow L) in the winding gap between the pressure drum 5 and the one lying on the rails and guided by the transport device 37 Winding roll 45 is in a displacement movement of the pressure drum 5 in Direction of the double arrow 7 set or optimized. For this is at a control device 49 is provided in this exemplary embodiment.
  • the pressure drum 5 is only relatively slightly in the direction of the double arrow 7 shifted from its central position, in which the piston 13 of the pressing device 6 is located approximately in the middle of the cylinder 11.
  • the pressure drum 5 points towards the winding roll, which becomes heavier with increasing diameter 45 less weight, so that a change in the direction of displacement the pressure drum 5 can be carried out very quickly. So you can for example, changes occurring due to an imbalance in the winding roll itself Jumps in line force can be compensated for quickly, so that a winding roll with a defined winding hardness or an even winding hardness curve can be formed.
  • the control device 49 described below is especially suitable for one hydraulic system and is in another - in the figures not shown - embodiment of the pressing device adapted accordingly or modified.
  • the control device 49 here comprises a measuring device 51 for the line force L, a controller 53 and a setpoint generator 55.
  • the measuring device 51 is connected to the controller 53 via a measuring line 57.
  • the control device 49 comprises a first valve 59 which can be switched into two functional positions In the first functional position shown in FIG. 1, the valve 59 connects one of the Regulator 53 line 61 coming with cylinder 11.
  • the pressure of line 61 Hydraulic fluid present is set by controller 53 and is smaller than that maximum pressure provided by a pressure source 63.
  • the maximum pressure of the hydraulic system is also present in a bypass line 65 which bypasses the controller 53.
  • the cylinder 11 of the pressing device 6 pressurized with the maximum pressure of the hydraulic system.
  • the Control device 49 also includes a second valve 67, which has two functional positions is switchable. In a second functional position, line 61 is connected via a Line 69 with the cylinder of the primary pressure device shown only symbolically (Arrow 72) connected ( Figure 2). In the first functional position of valve 67 (FIG. 1) becomes the connection between line 61, in which for the adjustment of the line force required pressure set by the controller 53 is present, and the primary pressure device (Arrow 72) interrupted.
  • the changes Controller 53 then the pressure of the hydraulic fluid in line 61 and thus in Cylinder 11 such that the measured value of the line force approaches the target value.
  • the line force can then also be constant, for example Value is maintained if a fault occurs in the winding process.
  • a malfunction can be caused by the transport device not being precisely moved 37, so that the position of the pressure drum 5 and the winding roller 45th formed winding gap shifts slightly.
  • the balance of the growing Diameter of the winding roll guided and held by the secondary bearing 31 45 is during this winding phase by a process of Transport device 37 in the direction of arrow 19 by means of the lifting device 35 realized.
  • the cylinder 11 is the Pressure device 6 with the maximum pressure of the hydraulic system or the pressure source 63, while the cylinder of the A lower pressure is applied to the primary pressure device (arrow 72), namely the pressure prevailing in line 61 for setting the line force in new winding gap.
  • the primary pressure device arrow 72
  • the empty, from the Primary bearing 21 held and by the primary drive at the speed of the web Accelerated drum 27 is from its standby position shown in Figure 1 shifted to the so-called primary position, i.e. defined against the Scope of the pressure drum 5 pressed: this is done using the in the figures an arrow 72 shown primary pressure device.
  • the drum 27 is already in the Arranged secondary region, that is, the drum 27 lies on the rails 33 the secondary storage 31. Until the drum 27 with the wound on it Transfer winding roll 71 from the primary bearing 21 to the secondary bearing has been, the pressure drum 5 remains fixed in its starting position, because the cylinder 11 of the pressure device 6 continues at the maximum pressure of Hydraulic system is connected. In Figure 3, the finished winding roll 45 is already from the Secondary storage 31 has been removed after it has been braked and by Secondary drive 47 was separated.
  • FIG. 6 shows a diagram in which the line force or the pressure L in the winding gap between the pressure drum and the winding roll, the pressure in the cylinder of the pressure device 6 and the pressure prevailing in the cylinder of the primary pressure device are applied before, during and after a reel change.
  • the pressure p is plotted on the ordinate axis and the time t is plotted on the abscissa axis.
  • the solid line L shows the pressure L in the nip between the winding roller and the pressure drum.
  • the dashed line also shows the curve of the pressure p Z11 in the cylinder 11 of the pressure device 6 and the dashed line shows the pressure p PA in the cylinder of the primary pressure device (arrow 72).
  • the pressure L that is to say the line force in the winding gap, has an essentially constant value here purely by way of example.
  • the line force is again controlled or regulated exclusively by adjusting the pressure in the cylinder 11 of the pressing device 6, so that the pressure in the nip between the winding roller and the pressing drum increases slightly.
  • the pressure in the cylinder 11 is slightly reduced again and thus also the pressure L in the winding gap.
  • the reason that the pressure p Z11 at time 3 has not been reduced to the pressure p PA in the cylinder of the primary pressure device is that a decrease in the pressure in the winding gap is to be prevented during the transfer of the reel from the primary bearing to the secondary bearing , A slight increase in the pressure L in the winding gap at time 4, as shown in the diagram, leads to practically no detectable change in the winding result.
  • both drives ie the primary drive 29 and the Secondary drive 47, coupled to the drum 27. This ensures that the reel with an exact, adjustable during the entire winding process Torque (drive / braking torque) can be applied.
  • the winding machine described with reference to Figures 1 to 5 is generally for winding a material web can be used.
  • the winding machine can end at one Machine for manufacturing or processing, for example finishing, a material web, for example a paper or cardboard web, to be arranged around the wind the finished material web into a winding roll.
  • the winding machine can also be used to rewind already wound winding rolls.
  • the almost finished winding roller 45 in guided by the secondary bearing is used Direction of arrow 19 to the right into a dashed line in FIG. 2, for example Move the position shown before the material web 3 onto the empty drum 27 is transferred.
  • one arranged below the winding roller 45 also as a squeeze roller designated pressure roller pressed on the circumference of the winding roller 45 becomes.
  • the pressure roller is used to to prevent air being carried in between the winding layers of the winding roll 45, for example, when the web of material moves freely from the pressure drum 5 is guided to the winding roll 45.
  • the contact pressure. with the pressure roller is pressed on the circumference of the winding roll 45 is adjustable.
  • the pressure roller can are preferably driven by a drive, for example a center drive before and during the pressure roller to the extent of the secondary storage held winding roll 45 is pressed.
  • space for example one Separating device for separating the material web into the area between the new one Tambour, the pressure drum and the almost finished winding roll. It is also possible, from below a medium flow, for example air flow, in the Conduct intermediate space, while braking the almost finished winding roll leads to the formation of a material web loop. in the area of the loop Material web are separated by means of the separating device. It goes without saying a "Nordic change" is possible, that is, the material web loop is in the nip wrapped between empty reel and pressure drum. Then the tears Material web from.
  • Such methods and devices for separating the material web are generally known, so that they are not discussed in more detail here.

Landscapes

  • Replacement Of Web Rolls (AREA)
  • Winding Of Webs (AREA)
  • Basic Packing Technique (AREA)

Claims (16)

  1. Procédé pour enrouler en continu une bande de matière (3), en particulier une bande de papier ou de carton, sur un tambour (27, 43) en une bobine (45), comprenant les étapes suivantes:
    guidage de la bande de matière (3) sur une zone périphérique d'un tambour de pression (5), qui forme une fente de bobinage avec une bobine (45),
    application du tambour de pression (5) sur la bobine (45), lorsque celle-ci se trouve dans une région secondaire, une commande ou une régulation de la force linéique (L) étant effectuée dans la fente de bobinage par un déplacement du tambour de pression (5),
    à l'obtention d'un diamètre de bobine désiré, déplacement du tambour de pression (5) dans une position fixe, dans laquelle l'appui du tambour de pression (5) est fixé de façon temporaire,
    chargement d'un nouveau tambour, encore vide (27), dans une zone primaire avec formation d'une nouvelle fente de bobinage entre le nouveau tambour (27) et le tambour de pression (5), par un mouvement relatif du nouveau tambour (27) par rapport au tambour de pression (5) se trouvant dans la position fixe,
    coupe de la bande de matière (3) et commencement de l'enroulement de la bande de matière (3) en une nouvelle bobine (45) sur le nouveau tambour (27),
    enlèvement de la bobine coupée (71) et transfert du nouveau tambour (27) avec la nouvelle bobine (45) de la zone primaire dans la zone secondaire,
    libération du tambour de pression (5) de la position fixe et nouveau déplacement du tambour de pression (5) pour la commande ou la régulation de la force linéique (L) dans la fente de bobinage.
  2. Procédé suivant la revendication 1, caractérisé en ce que la libération du tambour de pression (5) de la position fixe est effectuée après que le diamètre de la nouvelle bobine (45) en croissance ait atteint une valeur définie, de préférence variable.
  3. Procédé suivant la revendication 1 ou 2, caractérisé en ce qu'il se produit, pendant la commande ou la régulation de la force linéique (L) par déplacement du tambour de pression (5), une compensation du diamètre croissant de la bobine par un mouvement relatif de la bobine (45) par rapport au tambour de pression (5).
  4. Procédé suivant l'une quelconque des revendications précédentes, caractérisé en ce que l'on opère une traction libre de la bande de matière (3) entre le tambour de pression (5) et la bobine presque terminée (45) avant le commencement de l'enroulement de la bande de matière (3) sur le nouveau tambour (27).
  5. Procédé suivant la revendication 4, caractérisé en ce que l'on forme une fente de bobinage entre la bobine (45) et un rouleau de pression, pendant que la bande de matière (3) est guidée en une traction libre du tambour de pression (5) vers la bobine presque terminée (45).
  6. Procédé suivant l'une quelconque des revendications précédentes, caractérisé en ce que le nouveau tambour (27) avec la nouvelle bobine (45) est maintenu localement immobile pendant une durée variable, après qu'il ait été déplacé de la zone primaire à la zone secondaire.
  7. Procédé suivant l'une quelconque des revendications précédentes, caractérisé en ce que la nouvelle bobine (45) est pressée avec une force pouvant être commandée ou régulée (72) sur le tambour de pression (5) se trouvant dans la position fixe, pendant l'enroulement dans la zone primaire et pendant le transfert de la nouvelle bobine (45) de la zone primaire à la zone secondaire.
  8. Procédé suivant l'une quelconque des revendications précédentes, caractérisé en ce que le nouveau tambour (43), déjà transféré dans la zone secondaire, est pressé sur le tambour de pression (5) se trouvant dans la position fixe, avec une force pouvant être commandée ou régulée, pendant une partie de l'opération d'enroulement.
  9. Enrouleuse (1) pour enrouler en continu une bande de matière (3), en particulier une bande de papier ou de carton, sur un tambour (27, 43) en une bobine (71, 45), avec un tambour de pression (5), qui forme une fente de bobinage avec la bobine (71, 45), avec un appui primaire (21) comprenant deux leviers pivotants (23) et un dispositif de maintien (25) et soutenant un nouveau tambour (27), pour le déplacement du nouveau tambour (27) le long d'une première trajectoire de guidage radialement par rapport au tambour de pression (5), et avec un appui secondaire (31) pour le tambour (43), caractérisée en ce que le tambour de pression (5) peut être fixé temporairement dans une position fixe lorsque le tambour (27) se trouve dans l'appui primaire (21), et en ce qu'il peut être déplacé - de préférence à l'horizontale ou sensiblement à l'horizontale - au moyen d'un dispositif de pression (6) lorsque le tambour (43) se trouve dans l'appui secondaire (31).
  10. Enrouleuse (1) suivant la revendication 9, caractérisée en ce que l'appui primaire (21) comprend un dispositif de pression primaire (flèche 72) mobile, portant le nouveau tambour (27) de façon rotative, au moyen duquel le tambour (27) peut être déplacé en direction de la périphérie du tambour de pression (5) et dans la direction opposée.
  11. Enrouleuse (1) suivant la revendication 9 ou 10, caractérisée en ce que l'appui primaire (21) comprend un dispositif de pression primaire (flèche 72) mobile, portant le nouveau tambour (27) de façon rotative, au moyen duquel le tambour (27) peut être appliqué sur le tambour de pression (5) avec une force pouvant être commandée ou régulée.
  12. Enrouleuse (1) suivant l'une quelconque des revendications 9 à 11, dont le dispositif de pression (6) présente un cylindre (11), une source de pression (63) et un dispositif de commande de la pression, par exemple un régulateur (53), caractérisée en ce qu'une soupape (59) relie le cylindre (11) à la source de pression (63) au choix soit directement (sans régulation) soit par l'intermédiaire du dispositif de commande de la pression (régulateur 53).
  13. Enrouleuse (1) suivant les revendications 11 et 12, caractérisée en ce qu'une soupape (67) relie le dispositif de pression primaire (flèche 72) à la source de pression (63) temporairement par l'intermédiaire du dispositif de commande de la pression (régulateur 53).
  14. Enrouleuse (1) suivant la revendication 12 ou 13, caractérisée en ce qu'un agencement de soupapes (59, 67) envoie une pression commandée ou régulée (conduite 61) soit au cylindre (11) soit au dispositif de pression primaire (flèche 72).
  15. Enrouleuse (1) suivant l'une quelconque des revendications 12 à 14, caractérisée en ce que les soupapes (59, 67) peuvent être raccordées ensemble temporairement par la conduite (61) au régulateur (53) et à la source de pression (63) et alimentent ainsi temporairement en pression commandée ou régulée aussi bien le cylindre (11) que le dispositif de pression primaire (flèche 72).
  16. Enrouleuse (1) suivant l'une quelconque des revendications 12 à 15, caractérisée en ce qu'un organe de réduction de la pression (73) est installé entre la soupape (59) et le cylindre (11) pour l'abaissement progressif de la pression maximale régnant dans le cylindre (11) à la pression commandée ou régulée (conduite 61).
EP99102588A 1998-02-25 1999-02-11 Méthode et dispositif pour continuellement enrouler une bande de matériau Expired - Lifetime EP0941955B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19807897A DE19807897A1 (de) 1998-02-25 1998-02-25 Verfahren und Vorrichtung zum kontinuierlichen Aufwickeln einer Materialbahn
DE19807897 1998-02-25

Publications (3)

Publication Number Publication Date
EP0941955A2 EP0941955A2 (fr) 1999-09-15
EP0941955A3 EP0941955A3 (fr) 1999-09-22
EP0941955B1 true EP0941955B1 (fr) 2003-05-07

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP99102588A Expired - Lifetime EP0941955B1 (fr) 1998-02-25 1999-02-11 Méthode et dispositif pour continuellement enrouler une bande de matériau

Country Status (5)

Country Link
US (1) US6250580B1 (fr)
EP (1) EP0941955B1 (fr)
AT (1) ATE239658T1 (fr)
CA (1) CA2262721A1 (fr)
DE (2) DE19807897A1 (fr)

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DE10023057A1 (de) 2000-05-11 2001-11-15 Voith Paper Patent Gmbh Wickelmaschine zum kontinuierlichen Aufwickeln einer Materialbahn
DE10030199A1 (de) 2000-06-20 2002-01-03 Voith Paper Patent Gmbh Verfahren und Wickelmaschine zum kontinuierlichen Aufwickeln einer Materialbahn
PT1225142E (pt) * 2001-01-22 2007-02-28 Andritz Ag Maschf Processo e dispositivo para o enrolamento contínuo de uma banda de material fibroso
AT409854B (de) * 2001-01-22 2002-12-27 Andritz Ag Maschf Vorrichtung zum kontinuierlichen aufwickeln einer faserstoffbahn
AT409852B (de) * 2001-01-22 2002-12-27 Andritz Ag Maschf Vorrichtung zum kontinuierlichen aufwickeln einer faserstoffbahn
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EP0941955A2 (fr) 1999-09-15
DE59905391D1 (de) 2003-06-12
CA2262721A1 (fr) 1999-08-25
DE19807897A1 (de) 1999-08-26
EP0941955A3 (fr) 1999-09-22
ATE239658T1 (de) 2003-05-15
US6250580B1 (en) 2001-06-26

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